Motor toboggan



Aug. 28, 192s.

1,682,051 H. E. PEARsoN MOTOR TOBOGGAN Filed Maren 1, 1924 2 sheets-shut1 f/'QZ Aug. 2s, 1928. 1,682,051

H. E. PEARsoN MOTOR TOBOGGAN Filled March 1, 1924 y 2 sheets-sheet: 2A

I/v VEN Toa HER/WIN E Ffa/:50N

-TORNEYG Patented lAug. 28, 1928.

` HERMAN nll PEAasoN, k or Wianrziifin,y MINNESOTA,

Moron ToBoGGAN.

Application med-narcnri, 1924. semina. ese-:,sss.

The object of my invention is to provide a power-driven toboggan bymeans o f which a, person may ride over snow or ice without folllowingany road or beaten vpath and without paying any attention towhether thesnow is harder soft, except ythat the drivingu roller may be adjusted toadapt it particularly for engaging either a; hard orsof-,t surface.

A, further object is toi provide aniotor- IH driven; toboggan? ofsimple, inexpensive con,-

struction but very strong 'and durable and able to withstand rough usageto which a device of this` kind would be ordinarily subjected.V i

` @ther and; particularr objects of the inven-- tion will appear fromlthe following detailed description. j

Y rllhe invention consists generally. in various constructionsv and`combinations allas hereinafter described and particularly pointed out intheclaims. p t p In the, accompanying drawings 'for-ming part ofthisspeci iication-0 FigureV 1 isa sideA elevation .of a' motor- L driventoboggan embodying my invention;

Figure 2 is a plan view of the saine;

Figure 3 is a bottom yiew;

Figure 4 is a detail view partially in section of the driving roller; I

Figure 5 is a sectional view on the line 5-5 of Figure 4 showing theconstruction of the roller; and

Figure 6 is a perspective view of one of the driving rails or bars ofthe roller removed.

In the drawing:

2 represents the main portion or body of the toboggan of any suitable orpreferred construction having the upwardly turned forward end 3 as usualin devices of this kind. The under side of the toboggan is preferablyprovided with shoes 4 of suflicient thickness to raise the middleportion off the snow or ice, and between the shoes a guideplate 5 ispivoted at 6 and has an upwardly turned forward portion conformingsubstantially to the curve of the toboggan and connected through thewall of the toboggan by a pin 7 with a crank 8 on the lower end of asteering post 9 mounted in suitable bearings 10 and 11 on the tobogganand provided with a steering wheel 12. By rotating this post the plate 5is oscillated from side to side to steer the toboggan.

13 represents a suitable drivers seat arranged substantially midway ofthe toboggan convenient for the driver to grasp the wheel 12. Beneaththis seat, is a transverse shaft 111 whereon bars 1-5- are mounted toextend backwardly` over the rear portion; of the tobog-gan and beyond:its: rear end'. A roller shaft 1-6-is mounted in the rear ends; of thesebars which are preferably curved or turned down slightly to properlyposition-them for supporting the driving roller.v 17 represents thedriving roll-ler secured on; the shaft 16v and l'iaving at each enddriving-rings 18 of a suitable composition materialL adapted' to,oontactwith a hard surface such as ice or hard snow and grip the same with.sufficient pressure to dii-ve the toboggan. n

Between these rin-gs, angle bar bladesA 19 are arranged lengthwise offthe roller and spaced apart a suitable distance and secured thereto bysuitable means such; as bolts 20. These blades are reinovablle and= maybe dis'- carded in driving over a surface tha-tis suit'- able for therings! 18 to contact with in; drivingy the toboggan but maybe replacedtok aid in propelling when the roller is operating in soft snow and itis desired to have the blades dig into the snowand pack it. suflicientlyto afford' sufficient resistance to the revolution` of the roller todrive the toboggan.

Sprocket wheels 21 are mounted on the ends of the shaft 16 and sprocketbelts 22 connect these wheels with similar Wheels 23 on a shaft 24 thatis jonrnaled in bearings on the bars 15 adjacent the rear ends thereofand the driving roller. A platform 25 is secured to said bars andsupports a source of motive power such as an internal combustion engine26 and a drive belt 27 connects this engine with the shaft 211. Thisengine is preferably of the motorcycle type, being strong and reliableand having sufficient power to drive the operating roll, the weight ofthe engine being utilized to depress the rear ends of the bars 15 andhold the roll down in contact with the surface over which the tobogganis passing. Furthermore, by mounting the engine on the bars 15 thedriving roll and the bars are allowed freedom of vertical oscillation toconform to inequalities of the ground without in any way disturbing thedriving connections between the engine and the roll. The shaft 24 ispreferably provided with a brake drum 28 and a rod 29 leads from thisdrum to a suitable pedal 30 by means of which the driver can apply thebrake to the shaft.

I also prefer to provide a means for raising the driving roller to anon-working position, said means comprising a shaft 31 having crank.arms 32 at each end thereof, connected y by links 33 with the bars 15.A correspond venient reach of the driver and provided with a lockinglatch 38 to engage a quadrant- 39 for locking the lever or rod in itsdifferent positions. Forward'movement of the lever will raise the barsand li-ft the driving roll outof Contact with the snow orice, andbackward movement of the lever will allow the bars to drop and put thespring 36 under compression to yieldingly hold the driving roll dow-nuponv the ground, the arms 32 exerting a downward pull on the bars 15and the driving roll commensurate with the backward pressure of thespring36 on the arm 311. Thus by they adjustment of the lever 37 thedriver is able to increase oi' decrease the pressure of the driving`roll upon the surface over which it isinoving. The spring 36 in additionto its .function of yieldingly holding the roll. to the ice orsnow willallow the roll and bars'15 to rise in passing over a rough surface andpermit the roll to accommodate itself to inequalities of the surface.

In various ways the details of construction herein shown and describedmay be modified and'still be within the scope of my invention.

I claim as my invention: 1. In combination with a toboggan having adrivers seat substantially interinediately thereof `in a lengthwisedirection, a frame pivoted at one end substantially beneath the Vseatand extending rearwardly, said frame having traction means engageablerearwardly'of the toboggan, means mounted upon the frame vfor drivingsaid traction means, means for raising and lowering the frame, includinga lever, and rod, said rodV extending to a point forwardly of the seat,and an operating lever pivotally engaged withthe forward end of the rod,.and arranged inl front of the drivers seat.

2. In combination with a toboggan having a driversseat, substantiallymedially thereof in a lengthwise direction, a frame pivoted at one endsubstantially beneath the seat and extending rearwardly, said framehaving traction means engageable rearwardly of the toboggan, meansmounted, on the frame for driving said traction means,v a bellcranklever pivoted to the toboggan intermediately between the' pivotal pointof the frame and the end of the toboggan, said bellcrank having oneV armsupportingly connected 'with the frame, a rod slidable through the otherarm and extending rearwardly of the arm and having a stop, and furtherextending to a point forwardly of the seat, a lever pivotally engaged bythe forward end of the rod, and a spring upon the rod exerting pressurein a rearward direction against the second arm.

In witness whereof, I have hereunto set my hand this th day of February,1924.

- HERMAN E. PEARSON` isv

